Machine for manufacturing linoleum.



No. 795,613. PATENTBD JULY 25, 1905.

11. HOLTKOTT L G. FRBNKEL.

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UNITED STATES PATENT OFFICE.

RICHARD HOLTKOTT AND GUSTAV FRENKEL, OF BEDBURG, NEAR CO- LOGNE,GERMANY, ASSIGNORS TO RHEINISCHE LINOLEUMWERKE BEDBURG, A. G., OFBEDBURG, NEAR COLOGNE, GERMANY.

IVIACH|NE FOR MANUFACTURING LINOLEUM.

f Specification of Letters Patent.

Patented July 25, 1905.

Application filed March l1, 1905. Serial No. 249,642.

To all whom, t Wha/y con/cern:

Be it known that we, RICHARD HoLTKoTT and GUsTAV FRENKEL, subjects oftheGerman Emperor, residing at Bedburg, near Cologne, Germany, haveinvented new and useful Improvements in Machines for ManufacturingLinoleum, of which the following is a specification.

Our invention relates to the manufacture of linoleum of the classtechnically known as through and through, the pattern being formed bycolored granular composition being distributed in suitable dispositionupon a fabric foundation; and the invention has reference moreparticularly to those machines employed in such manufacture which areiitted with distributing-boxes caused to travel over molds or stencilsfor the purpose of depositing the composition upon the continuously orintermittently traveling fabric.

In prior machinery of this class the composition has been fed to themolds or stencils by means of stationary hop ers or chutes, the eXit ofwhich is controlle by a suitable hand or automatic valve or like device,which is opened when the distributing-box arrives below thehopper-mouth. Such hoppers, however, are troublesome and unreliable inpractice,and considerable waste may arise through material dripping atthe valve. According to our invention we entirely overcome these defectsby maintaining the exit of the hoppers permanently above thereciprocating distributing boXes. In this manner the boxes are fedcontinuously, whereas formerly the filling could only proceedintermittently, owing to the hopper-mouth having to be periodicallyopened and closed. hIeans may be provided whereby the rate of chargingthe hoppers is regulated in such manner that they always feed the properquantity of composition to the molds. Such means may consist ofadjustable pawl-and-ratchet gear for driving the conveyer belt or apron.

One form of construction of the new apparatus is illustrated in theaccompanying drawing, in which the figure shows an elevation and partsection.

7c is a box designed to distribute the composition to the mold s inwell-known manner, according to the pattern, by being reciprocated byany suitable means between the full-line and dotted-line positionsindicated on the drawing. The boX c is fed by a hopper t, which insteadof being stationary, as in prior practice, is suspended so as to swingon trunnions c, turning in suitable bearings on the beams y. The bottomof the hopper is provided with a guide pin or stud e, engaging in aslotted upright In this manner the hopper performs an oscillatorymovement, its exit end traveling with and always remaining located abovethe boXc. The hopper t feeds the boX k continuously, the compositionbeing charged into it from above by means of an endless belt or apron b,traveling on drums c d. In order to provide for regulation of the feedaccording to the quantity required of each particular color and to therate of distribution and the like, one of the drums c is provided withratchet-teeth e. In these teeth there engages a pawl e', pivoted to alever a,

one end of which is carried by a shaft m of the druml c, while the otherend is jointed to a link Z, the farther end of which is provided with apin m', located in a slot n in the upper limb of the double-armed lever7L, fulcrumed at o to a stationary part. The lower end of the lever hmay be actuated in any suitable manner at p. In this way the length ofstroke of the pawl-arm may be varied as desired. Instead of the preciseconstruction of ratchetgear shown it is obvious that any other suitablegear, whether with pawls, friction-clutches, or the like, may beemployed.

Having thus described our invention, what we claim as new, and desiretosecure by Letters Patent, is-

1. In a linoleum-making machine, in combination, a traveling box' fordistributing the composition to the mold, a support and a nonfleXiblehopper having its upper end pivotally connected to the support, and theother end connected with the traveling boX so that said hopper will haveoscillating movement.

2. In a linoleum-making machine, in combination, a traveling box fordistributing the composition to the mold, a support, a nonfleXiblehopper, trunnions z connecting the upper end of said hopper to thesupport, a

guide-pin connected to the lower end of said hopper and an uprightconnected with the traveling boX, said upright having a slot therein inwhich the said guide-pin engages whereby the said hopper Will be causedto oscillate as the box moves, substantially as -described.

3. In a linoleum-making machine, in combination, a traveling box fordistributinCr the composition to the mold or stencil, a Icedhopperhaving a constantly-open exit located permanently above the travelingbox, and

means for charging the hopper, comprising an endless apron located atthe top of the hopper, drums carrying the apron, and variable-strokegear actuating the driving-drum, substantially as described.

4. In a linoleummaking machine, in combination, a traveling box fordistributing the composition to the mold or stencil, a feedhopper havinga constantly-open exit located permanently above the traveling box, andmeans-for charging the hopper, comprising an endless apron located atthe top of the hopper, drums, one of which presents ratchetteeth,carrying the apron, a feed-pawl engaging in the ratchet-teeth, and asystem of levers for actuating the pawl With.variable stroke,substantially as described.

In testimony whereof We have signed our names to this specification inthe presence of t-Wo subscribing Witnesses.

RICHARD HOLTKOTT. GUSTAV FRENKEL.

Witnesses WILLIAM EssENWEIN, PETER LIEBER.

